I'm just an engineer. I like to invent or improve something.

Recommended
Shared Projects Questions Sponsorships Feedback Blog Like
Flashes a LED when detecting an incoming call Powered by one 1.5V cell
Most PC enclosures provide only a single LED to indicate hard disk access, with the LED being connected to the motherboard via a two-pin connector.
Have you ever made a circuit that automatically power ON and OFF after a desirable or set amount of time? Traditionally, various loads would have been manually controlled, i.e., the operator would tur...
A portable USB hard drive is a great way to back up data but what if your USB ports are unable to supply enough "juice" to power the drive? A modified version of the Silicon Chip Usb Power Injector is...
The Marantz SA-11S1 is a very good SACD player, I have compared it with my Marantz SA8400 SACD player and the SA-11S1 has the following major improvements
What is the difference between a pad and a via? A pad is a ring of copper on one side of the board only, while a via is a “double-pad” where two pads on opposite sides of the board are electrically jo...